Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4QHR callsign genealogy
Currently held by Smith, William S
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KB4QHR's current licensee, walking backwards.
- SMITH, JONATHAN DNCgranted 2016-10-12cancelled 2017-01-04
Successor callsigns
Callsigns held now by people who previously held KB4QHR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4QHR, oldest first.
- Smith, William S NC2005-09-09 → cancelled 2016-02-22
- SMITH, JONATHAN D NC2017-01-04 active